I had some 3D done at my 32 & 34 week scans for medical reasons but they also looked at the face which they didn't need to do. At the 32 week one we couldn't see the face very well as there wasn't much fluid in front of the face but we saw a little better at the next one. I'd also had 3D & 4D done at 12 weeks, 16 weeks & 20 weeks.

Basically we could tell at the 12 week one that Brock was going to look like his dad. I was so shocked that this could be seen so early. The likeness was confirmed each time we saw him in 3D.

As for the "surprise factor" - I say don't worry about what others say. Even though I felt sure he'd look like that I was still shocked at how like his dad he was when they placed him in my arms. There are always unknowns like hair color & eye color so there will still be some surprises.

I have know regrets & like you I also knew the sex of the baby. Each to their own.